"JB1964" <JB1964@discussions.microsoft.com> wrote in message
news:838C79B2-2E3D-461F-B13B-30D16F5D6535@microsoft.com...
> Are there any known issues with installing a second instance of XP to an
> external USB HD? I have found nothing in the discussions that would lead
> me
> to believe otherwise, but I still get a check disk error on the external
> drive during installation. I have looked at every post I could find on
> dual
> boot procedures and found nothing on this subject. I've run check disk on
> the second drive and everything seems in order. It has two partitions and
> no
> errors on either. Is the USB connection the culprit? Any help is greatly
> appreciated!
As you can see from how the thread has evolved you are getting
conflicting advice.
You can install and boot from a USB device, but the BIOS has to
be reconfigured. In all BIOS settings USB is activated by default.
But the setting you require is *Legacy* device which is DEactivated
by default. It won't be listed under USB, it may have it's own heading
or maybe listed under Advanced depending in your BIOS.
But it is *Legacy* device (Or "Legacy USB") that you have to activate.
Once you have installed XP to USB HDD there are pitfalls you have to
watch out for.
BIOS are configured to scan in a *sequence/order* looking for boot.ini
the usual setting for the scan is first a Floppy drive, if no boot it moves
to the CD/DVD drive, if no boot it then scans next in sequence being
the HDD. It will boot from the first it finds in the sequence, so if you
loaded an XP disk it will boot from that.
To be able to boot from the USB installation of XP, the USB connected
drive has to be activated under *Legacy* devices and then included in
the BIOS boot sequence, but including it in boot sequence you do so
as the last device, so the sequence would run as:
1 - Floppy (If one installed on your PC)
2 - CD/DVD drive
3 - "C" drive/partition as configured on your PC
4 - Legacy device
The problem being with that configuration is your PC will boot from
the C partition and never scan the legacy (USB). So you have to install a
tool that upon boot gives you the option to chose which device to
boot from. The obvious one being Acronis Boot Manager being an
excellent and established tool for the task, but it ain't free.
In google, If you type: boot sequence, boot loaders, boot managers
you should get plenty of results and some freeware options.
Once you have configured your PC you will find XP will install to the
*legacy* activated USB connected hard drive.
Anyone else who is interested, by activating *Legacy* devices in
the BIOS settings you will also be able to boot from an externally
connected USB DVD drive, this maybe of use to laptop owners
or hardware failure etc. But in such circumstance you set the *legacy*
device as first in Boot sequence.